Accession Number:

ADA544946

Title:

Operational Characteristics of a Rotating Detonation Engine Using Hydrogen and Air

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF AERONAUTICS AND ASTRONAUTICS

Personal Author(s):

Report Date:

2011-06-01

Pagination or Media Count:

105.0

Abstract:

Rotating detonation engines RDE are pressure gain combustion engines that have the potential for greater efficiency than traditional, constant pressure, deflagration engines. RDEs are smaller and mechanically simpler than pulsed detonation engines. A small diameter 3 in engine was successfully run on hydrogen and air. Most of the tests were conducted using air with a slightly lower diluents percentage 77 nitrogen as opposed to 79 nitrogen. These tests provided the foundation for determining the operational space mass flow rate and equivalence ratio of the rotating detonation engine. From the tests conducted with the lower diluents air, the appropriate run conditions for regular air were determined. For standard air 79 nitrogen it was found that a larger equivalence ratio about 1.5 was required to obtain continuous detonations.

Subject Categories:

  • Reciprocating and Rotating Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE